FWIW, I just don't support HTML email and only for a small handful of services and senders do I ever get burned. If my email client did a pass over the HTML and gave me all the text followed by all the links that would be sufficient (right now I sometimes simulate that by opening up the raw MIME and grabbing what I need). Like, do we live in a world where this even matters? How is your life being made worse by people using these features? E-mail was explicitly designed in a way to support emails that have both HTML and non-HTML, and for people like us--"worst case"--the HTML can be stripped to text and it is fine.